The standard material for all bearing rings and balls In
RotoPrecision miniature and instrument ball bearings is
400 series martensitic stainless steel. For
non-corrosive or extremely noise sensitive applications,
52100 chrome bearing steel can be specified. Many other
materials and coating options exist for specialized
situations, the most common of these is the substitution
of ceramic balls which provides greater stiffness,
longer life and lower operating temperatures at high
speeds. Please contact
Application Support for additional information about
the materials available.